actually port back the previous implementation, now correctly
this implies that a unit that has a different victim than the one its chasing will stand still till either:
- a new movement replaces the current, for w/e reason
- the chase target is again the current victim
probably a pause implementation on the generator is a more elegant solution...
updates #24600
(cherry picked from commit 472e1fd8aeea80c6b32253007a204e645f89dc2e)
ccrs
9fd26c5f09